Custom SMTP non identified on Mac Mail (if the encrypt / sign buttons are missing for secondary email accounts, you may want to consider adding those addresses to your existing OpenPGP key as user IDs)

Gee's Avatar


26 Apr, 2017 10:07 AM


So basically I have a custom setup with Mail app on my Mac

I forward my email to a account but I use a custom SMTP (custom domain) to send them and which is set by default
Now in the from-line of the composer, my custom domain used to send a message never appears . Weirdly enough, Apple only mentions the email address that is used to receive messages, that is my email address. However I know that those messages are correctly sent with this custom domain email address.
I logically have a key set up for this custom domain but i cannot not make use of it because GPGTools does not review the SMTP settings which is the most important aspect when one wants to send an encrypted or a signed message.

Is there something I can do ?

Thank you very much

  1. 1 Posted by Gee on 26 Apr, 2017 11:17 AM

    Gee's Avatar

    FIXED Oops i actually realized that i can add another email address to a single key which solved the problem

  2. Support Staff 2 Posted by Steve on 26 Apr, 2017 04:52 PM

    Steve's Avatar

    Hi Gee,

    welcome to the GPGTools support platform.

    Glad, this is solved for you. For others running into this situation, here's the KB-article explaining how to add more than one email address to an existing key. The email addresses in a key are called userIDs and you can add as many as you want.

    Important note: Note that all email addresses you add to a single key can be connected to one identity. Depending on your use-case this might be wanted or should be avoided. Please consider that first and then proceed.

    I'm closing this discussion. Should you need further assistance or have questions you can re-open this discussion here or open a new one any time.

    Best, steve

  3. Steve closed this discussion on 26 Apr, 2017 04:52 PM.

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